Vassar has many census documents in print from the first census in 1790 through the 22nd census in 2000.   Search the online catalog using the subject heading: United States Census 1st 1790 [substitute number and date of the appropriate census]

Early census materials are in LC classification and shelved in the main collection. Example:

Subject heading: United States Census 17th 1950

• HA 201 1950.A2
  United States. Bureau of the Census.
  Census of Population: 1950; a Report of the Seventeenth Decennial Census of the United States. v. 3. Census Tract Statistics.

Later census materials are in the Superintendent of Documents Classification. Print volumes are shelved in the U.S. Government Documents collection. Census materials on CD ROM are also in the U.S. Government Documents area:

Subject heading: United States Census 19th 1970

• U.S. Doc. C3.223/11:970/145 (New York)

Subject heading: United States Census 20th 1980

Much of the 1980 census is on microfiche in the Microtext Room. The Census of Population and Housing is also in print in the documents collection.

• U.S. Doc. C3.223/11:980/260
  The 1980 Census of Population and Housing. Census Tracts.